furnace/src/engine/platform/nes.h
2022-01-26 16:07:55 -05:00

61 lines
1.4 KiB
C++

#ifndef _NES_H
#define _NES_H
#include "../dispatch.h"
#include "../macroInt.h"
class DivPlatformNES: public DivDispatch {
struct Channel {
int freq, baseFreq, pitch, prevFreq, note;
unsigned char ins, duty, sweep;
bool active, insChanged, freqChanged, sweepChanged, keyOn, keyOff, inPorta, furnaceDac;
signed char vol, outVol, wave;
DivMacroInt std;
Channel():
freq(0),
baseFreq(0),
pitch(0),
prevFreq(65535),
note(0),
ins(-1),
duty(0),
sweep(0),
active(false),
insChanged(true),
freqChanged(false),
sweepChanged(false),
keyOn(false),
keyOff(false),
inPorta(false),
furnaceDac(false),
vol(15),
outVol(15),
wave(-1) {}
};
Channel chan[5];
bool isMuted[5];
int dacPeriod, dacRate;
unsigned int dacPos;
int dacSample;
unsigned char sampleBank;
unsigned char apuType;
struct NESAPU* nes;
float freqBase;
public:
void acquire(short* bufL, short* bufR, size_t start, size_t len);
int dispatch(DivCommand c);
void reset();
void forceIns();
void tick();
void muteChannel(int ch, bool mute);
bool keyOffAffectsArp(int ch);
void setPAL(bool pal);
void notifyInsDeletion(void* ins);
int init(DivEngine* parent, int channels, int sugRate, bool pal);
void quit();
~DivPlatformNES();
};
#endif